Strange... It says I can get the rare black dragonfly with Venomous. I got it when I had fanleaves, ridgeballs, and tahitans out. I'm not sure what the other ones were, but I had NO venomous flowers out. I tried planting my venomous grass seeds, and when the flowers appeared, no Black Dragonflies appeared. I have been making Venomous grass for a VERY long time, and nothing new.